#ifndef SOUNDCARD_H
#define SOUNDCARD_H
/*
 ****************************************************************************
 *
 ******************************************************************************
 * Modifications to this file are NOT allowed. This header file controls the
 * OSS API. For compatibility reasons only 4Front Technologies can make changes
 * to the definitions. If you have any questions, please contact
 * hannu@opensound.com.
 ******************************************************************************
 *
 * Redistribution and use in source and binary forms, without
 * modification, are permitted provided that the following conditions are
 * notice, this list of conditions and the following disclaimer. 2.
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 ****************************************************************************
 */
/*
 * Purpose: The C/C++ header file that defines the OSS API.
 * Description:
 * This header file contains all the declarations required to compile OSS
 * programs. The latest version is always installed together with OSS
 * use of the latest version is strongly recommended.
 *
 * {!notice This header file contains many obsolete definitions
 * (for compatibility with older applications that still ned them).
 * Do not use this file as a reference manual of OSS.
 * Please check the OSS Programmer's guide for descriptions
 * of the supported API details (http://www.opensound.com/pguide).}
 */

#if defined (__cplusplus)
    #define EXTERNC extern "C"
#else
    #define EXTERNC extern
#endif /* EXTERN_C_WRAPPERS */

#define OSS_VERSION 0x040002

#define SOUND_VERSION OSS_VERSION
#define OPEN_SOUND_SYSTEM

#if defined (__hpux) && !defined (_HPUX_SOURCE)
    #error "-D_HPUX_SOURCE must be used when compiling OSS applications"
#endif

#ifdef __hpux
    #include <sys/ioctl.h>
#endif

#ifdef linux
/* In Linux we need to be prepared for cross compiling */
    #include <linux/ioctl.h>
#else
    #ifdef __FreeBSD__
        #include <sys/ioccom.h>
    #else
        #include <sys/ioctl.h>
    #endif
#endif

#ifndef __SIOWR
    #if defined (__hpux) || (defined (_IOWR) && (defined (_AIX) || (!defined (sun) && !defined (sparc) && !defined (__INCioctlh) && !defined (__Lynx__))))

/*
 * Make sure the ioctl macros are compatible with the ones already used
 * by this operating system.
 */
        #define SIOCPARM_MASK IOCPARM_MASK
        #define SIOC_VOID IOC_VOID
        #define SIOC_OUT IOC_OUT
        #define SIOC_IN IOC_IN
        #define SIOC_INOUT IOC_INOUT
        #define __SIOC_SIZE _IOC_SIZE
        #define __SIOC_DIR _IOC_DIR
        #define __SIOC_NONE _IOC_NONE
        #define __SIOC_READ _IOC_READ
        #define __SIOC_WRITE _IOC_WRITE
        #define __SIO _IO
        #define __SIOR _IOR
        #define __SIOW _IOW
        #define __SIOWR _IOWR
    #else

/* #define	SIOCTYPE		(0xff<<8) */
        #define SIOCPARM_MASK 0x1fff /* parameters must be < 8192 bytes */
        #define SIOC_VOID 0x00000000 /* no parameters */
        #define SIOC_OUT 0x20000000 /* copy out parameters */
        #define SIOC_IN 0x40000000 /* copy in parameters */
        #define SIOC_INOUT (SIOC_IN | SIOC_OUT)

        #define __SIO(x, y)  ((int)(SIOC_VOID | (x << 8) | y))
        #define __SIOR(x, y, t)   ((int)(SIOC_OUT | ((sizeof(t) & SIOCPARM_MASK) << 16) | (x << 8) | y))
        #define __SIOW(x, y, t)   ((int)(SIOC_IN | ((sizeof(t) & SIOCPARM_MASK) << 16) | (x << 8) | y))
        #define __SIOWR(x, y, t)  ((int)(SIOC_INOUT | ((sizeof(t) & SIOCPARM_MASK) << 16) | (x << 8) | y))
        #define __SIOC_SIZE(x)  ((x >> 16) & SIOCPARM_MASK)
        #define __SIOC_DIR(x)   (x & 0xf0000000)
        #define __SIOC_NONE SIOC_VOID
        #define __SIOC_READ SIOC_OUT
        #define __SIOC_WRITE SIOC_IN
    #endif /* _IOWR */
#endif /* !__SIOWR */

#define OSS_LONGNAME_SIZE 64
#define OSS_LABEL_SIZE 16
#define OSS_DEVNODE_SIZE 32
typedef char oss_longname_t[OSS_LONGNAME_SIZE];
typedef char oss_label_t[OSS_LABEL_SIZE];
typedef char oss_devnode_t[OSS_DEVNODE_SIZE];

#ifndef DISABLE_SEQUENCER
/*
 ****************************************************************************
 * IOCTL Commands for /dev/sequencer and /dev/music (AKA /dev/sequencer2)
 *
 * Note that this interface is obsolete and no longer developed. New
 * applications should use /dev/midi instead.
 ****************************************************************************/
    #define SNDCTL_SEQ_RESET __SIO('Q', 0)
    #define SNDCTL_SEQ_SYNC __SIO('Q', 1)
    #define SNDCTL_SYNTH_INFO __SIOWR('Q', 2, struct synth_info)
    #define SNDCTL_SEQ_CTRLRATE __SIOWR('Q', 3, int)    /* Set/get timer resolution (HZ) */
    #define SNDCTL_SEQ_GETOUTCOUNT __SIOR('Q', 4, int)
    #define SNDCTL_SEQ_GETINCOUNT __SIOR('Q', 5, int)
    #define SNDCTL_SEQ_PERCMODE __SIOW('Q', 6, int)
    #define SNDCTL_FM_LOAD_INSTR __SIOW('Q', 7, struct sbi_instrument)      /* Obsolete. Don't use!!!!!! */
    #define SNDCTL_SEQ_TESTMIDI __SIOW('Q', 8, int)
    #define SNDCTL_SEQ_RESETSAMPLES __SIOW('Q', 9, int)
    #define SNDCTL_SEQ_NRSYNTHS __SIOR('Q', 10, int)
    #define SNDCTL_SEQ_NRMIDIS __SIOR('Q', 11, int)
    #define SNDCTL_MIDI_INFO __SIOWR('Q', 12, struct midi_info)     /* OBSOLETE - use SNDCTL_MIDIINFO instead */
    #define SNDCTL_SEQ_THRESHOLD __SIOW('Q', 13, int)
    #define SNDCTL_SYNTH_MEMAVL __SIOWR('Q', 14, int)   /* in=dev#, out=memsize */
    #define SNDCTL_FM_4OP_ENABLE __SIOW('Q', 15, int)       /* in=dev# */
    #define SNDCTL_SEQ_PANIC __SIO('Q', 17)
    #define SNDCTL_SEQ_OUTOFBAND __SIOW('Q', 18, struct seq_event_rec)
    #define SNDCTL_SEQ_GETTIME __SIOR('Q', 19, int)
    #define SNDCTL_SYNTH_ID __SIOWR('Q', 20, struct synth_info)
    #define SNDCTL_SYNTH_CONTROL __SIOWR('Q', 21, struct synth_control)
    #define SNDCTL_SYNTH_REMOVESAMPLE __SIOWR('Q', 22, struct remove_sample) /* Reserved for future use */
    #define SNDCTL_SEQ_TIMING_ENABLE __SIO('Q', 23)     /* Enable incoming MIDI timing messages */
    #define SNDCTL_SEQ_ACTSENSE_ENABLE __SIO('Q', 24)   /* Enable incoming active sensing messages */
    #define SNDCTL_SEQ_RT_ENABLE __SIO('Q', 25)         /* Enable other incoming realtime messages */

typedef struct synth_control
{
    int devno;          /* Synthesizer # */
    char data[4000];    /* Device spesific command/data record */
} synth_control;

typedef struct remove_sample
{
    int devno;          /* Synthesizer # */
    int bankno;         /* MIDI bank # (0=General MIDI) */
    int instrno;        /* MIDI instrument number */
} remove_sample;

typedef struct seq_event_rec
{
    unsigned char arr[8];
} seq_event_rec;

    #define SNDCTL_TMR_TIMEBASE __SIOWR('T', 1, int)
    #define SNDCTL_TMR_START __SIO('T', 2)
    #define SNDCTL_TMR_STOP __SIO('T', 3)
    #define SNDCTL_TMR_CONTINUE __SIO('T', 4)
    #define SNDCTL_TMR_TEMPO __SIOWR('T', 5, int)
    #define SNDCTL_TMR_SOURCE __SIOWR('T', 6, int)
    #define TMR_INTERNAL 0x00000001
    #define TMR_EXTERNAL 0x00000002
    #define TMR_MODE_MIDI 0x00000010
    #define TMR_MODE_FSK 0x00000020
    #define TMR_MODE_CLS 0x00000040
    #define TMR_MODE_SMPTE 0x00000080
    #define SNDCTL_TMR_METRONOME __SIOW('T', 7, int)
    #define SNDCTL_TMR_SELECT __SIOW('T', 8, int)

/*
 * Sample loading mechanism for internal synthesizers (/dev/sequencer)
 * (for the .PAT format).
 */

struct patch_info
{
    unsigned short key;     /* Use WAVE_PATCH here */
    #define WAVE_PATCH _PATCHKEY(0x04)
    #define GUS_PATCH WAVE_PATCH
    #define WAVEFRONT_PATCH _PATCHKEY(0x06)

    short device_no;    /* Synthesizer number */
    short instr_no;     /* Midi pgm# */

    unsigned int mode;
    /*
     * The least significant byte has the same format than the GUS .PAT
     * files
     */
    #define WAVE_16_BITS 0x01   /* bit 0 = 8 or 16 bit wave data. */
    #define WAVE_UNSIGNED 0x02  /* bit 1 = Signed - Unsigned data. */
    #define WAVE_LOOPING 0x04   /* bit 2 = looping enabled-1. */
    #define WAVE_BIDIR_LOOP 0x08 /* bit 3 = Set is bidirectional looping. */
    #define WAVE_LOOP_BACK 0x10 /* bit 4 = Set is looping backward. */
    #define WAVE_SUSTAIN_ON 0x20 /* bit 5 = Turn sustaining on. (Env. pts. 3) */
    #define WAVE_ENVELOPES 0x40 /* bit 6 = Enable envelopes - 1 */
    #define WAVE_FAST_RELEASE 0x80 /* bit 7 = Shut off immediately after note off */
    /*  (use the env_rate/env_offs fields). */
    /* Linux specific bits */
    #define WAVE_VIBRATO 0x00010000 /* The vibrato info is valid */
    #define WAVE_TREMOLO 0x00020000 /* The tremolo info is valid */
    #define WAVE_SCALE 0x00040000 /* The scaling info is valid */
    #define WAVE_FRACTIONS 0x00080000 /* Fraction information is valid */
    /* Reserved bits */
    #define WAVE_ROM 0x40000000 /* For future use */
    #define WAVE_MULAW 0x20000000 /* For future use */
    /* Other bits must be zeroed */

    int len;        /* Size of the wave data in bytes */
    int loop_start, loop_end; /* Byte offsets from the beginning */

    /*
     * The base_freq and base_note fields are used when computing the
     * playback speed for a note. The base_note defines the tone frequency
     * which is heard if the sample is played using the base_freq as the
     * playback speed.
     *
     * The low_note and high_note fields define the minimum and maximum note
     * frequencies for which this sample is valid. It is possible to define
     * more than one samples for an instrument number at the same time. The
     * low_note and high_note fields are used to select the most suitable one.
     *
     * The fields base_note, high_note and low_note should contain
     * the note frequency multiplied by 1000. For example value for the
     * middle A is 440*1000.
     */

    unsigned int base_freq;
    unsigned int base_note;
    unsigned int high_note;
    unsigned int low_note;
    int panning;        /* -128=left, 127=right */
    int detuning;

    /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
    unsigned char env_rate[6];  /* GUS HW ramping rate */
    unsigned char env_offset[6]; /* 255 == 100% */

    /*
     * The tremolo, vibrato and scale info are not supported yet.
     * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
     * WAVE_SCALE
     */

    unsigned char tremolo_sweep;
    unsigned char tremolo_rate;
    unsigned char tremolo_depth;

    unsigned char vibrato_sweep;
    unsigned char vibrato_rate;
    unsigned char vibrato_depth;

    int scale_frequency;
    unsigned int scale_factor;  /* from 0 to 2048 or 0 to 2 */

    int volume;
    int fractions;
    int reserved1;
    int spare[2];
    char data[1];       /* The waveform data starts here */
};

struct sysex_info
{
    short key;          /* Use SYSEX_PATCH or MAUI_PATCH here */
    #define SYSEX_PATCH _PATCHKEY(0x05)
    #define MAUI_PATCH _PATCHKEY(0x06)
    short device_no;    /* Synthesizer number */
    int len;        /* Size of the sysex data in bytes */
    unsigned char data[1];  /* Sysex data starts here */
};

/*
 * /dev/sequencer input events.
 *
 * The data written to the /dev/sequencer is a stream of events. Events
 * are records of 4 or 8 bytes. The first byte defines the size.
 * Any number of events can be written with a write call. There
 * is a set of macros for sending these events. Use these macros if you
 * want to maximize portability of your program.
 *
 * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
 * (All input events are currently 4 bytes long. Be prepared to support
 * 8 byte events also. If you receive any event having first byte >= 128,
 * it's a 8 byte event.
 *
 * The events are documented at the end of this file.
 *
 * Normal events (4 bytes)
 * There is also a 8 byte version of most of the 4 byte events. The
 * 8 byte one is recommended.
 *
 * NOTE! All 4 byte events are now obsolete. Applications should not write
 *       them. However 4 byte events are still used as inputs from
 *       /dev/sequencer (/dev/music uses only 8 byte ones).
 */
    #define SEQ_NOTEOFF 0
    #define SEQ_FMNOTEOFF SEQ_NOTEOFF   /* Just old name */
    #define SEQ_NOTEON 1
    #define SEQ_FMNOTEON SEQ_NOTEON
    #define SEQ_WAIT TMR_WAIT_ABS
    #define SEQ_PGMCHANGE 3
    #define SEQ_FMPGMCHANGE SEQ_PGMCHANGE
    #define SEQ_SYNCTIMER TMR_START
    #define SEQ_MIDIPUTC 5
    #define SEQ_DRUMON 6        /*** OBSOLETE ***/
    #define SEQ_DRUMOFF 7       /*** OBSOLETE ***/
    #define SEQ_ECHO TMR_ECHO       /* For synching programs with output */
    #define SEQ_AFTERTOUCH 9
    #define SEQ_CONTROLLER 10
    #define SEQ_BALANCE 11
    #define SEQ_VOLMODE 12

/************************************
*	Midi controller numbers	    *
************************************/
/*
 * Controllers 0 to 31 (0x00 to 0x1f) and
 * 32 to 63 (0x20 to 0x3f) are continuous
 * controllers.
 * In the MIDI 1.0 these controllers are sent using
 * two messages. Controller numbers 0 to 31 are used
 * to send the MSB and the controller numbers 32 to 63
 * are for the LSB. Note that just 7 bits are used in MIDI bytes.
 */

    #define    CTL_BANK_SELECT 0x00
    #define    CTL_MODWHEEL 0x01
    #define    CTL_BREATH 0x02
/*		undefined		0x03 */
    #define    CTL_FOOT 0x04
    #define    CTL_PORTAMENTO_TIME 0x05
    #define    CTL_DATA_ENTRY 0x06
    #define    CTL_MAIN_VOLUME 0x07
    #define    CTL_BALANCE 0x08
/*		undefined		0x09 */
    #define    CTL_PAN 0x0a
    #define    CTL_EXPRESSION 0x0b
/*		undefined		0x0c */
/*		undefined		0x0d */
/*		undefined		0x0e */
/*		undefined		0x0f */
    #define    CTL_GENERAL_PURPOSE1 0x10
    #define    CTL_GENERAL_PURPOSE2 0x11
    #define    CTL_GENERAL_PURPOSE3 0x12
    #define    CTL_GENERAL_PURPOSE4 0x13
/*		undefined		0x14 - 0x1f */

/*		undefined		0x20 */
/* The controller numbers 0x21 to 0x3f are reserved for the */
/* least significant bytes of the controllers 0x00 to 0x1f. */
/* These controllers are not recognised by the driver. */

/* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
/* 0=OFF and 127=ON (intermediate values are possible) */
    #define    CTL_DAMPER_PEDAL 0x40
    #define    CTL_SUSTAIN 0x40         /* Alias */
    #define    CTL_HOLD 0x40        /* Alias */
    #define    CTL_PORTAMENTO 0x41
    #define    CTL_SOSTENUTO 0x42
    #define    CTL_SOFT_PEDAL 0x43
/*		undefined		0x44 */
    #define    CTL_HOLD2 0x45
/*		undefined		0x46 - 0x4f */

    #define    CTL_GENERAL_PURPOSE5 0x50
    #define    CTL_GENERAL_PURPOSE6 0x51
    #define    CTL_GENERAL_PURPOSE7 0x52
    #define    CTL_GENERAL_PURPOSE8 0x53
/*		undefined		0x54 - 0x5a */
    #define    CTL_EXT_EFF_DEPTH 0x5b
    #define    CTL_TREMOLO_DEPTH 0x5c
    #define    CTL_CHORUS_DEPTH 0x5d
    #define    CTL_DETUNE_DEPTH 0x5e
    #define    CTL_CELESTE_DEPTH 0x5e       /* Alias for the above one */
    #define    CTL_PHASER_DEPTH 0x5f
    #define    CTL_DATA_INCREMENT 0x60
    #define    CTL_DATA_DECREMENT 0x61
    #define    CTL_NONREG_PARM_NUM_LSB 0x62
    #define    CTL_NONREG_PARM_NUM_MSB 0x63
    #define    CTL_REGIST_PARM_NUM_LSB 0x64
    #define    CTL_REGIST_PARM_NUM_MSB 0x65
/*		undefined		0x66 - 0x78 */
/*		reserved		0x79 - 0x7f */

/* Pseudo controllers (not midi compatible) */
    #define    CTRL_PITCH_BENDER 255
    #define    CTRL_PITCH_BENDER_RANGE 254
    #define    CTRL_EXPRESSION 253  /* Obsolete */
    #define    CTRL_MAIN_VOLUME 252 /* Obsolete */

/*
 * Volume mode defines how volumes are used
 */

    #define VOL_METHOD_ADAGIO 1
    #define VOL_METHOD_LINEAR 2

/*
 * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
 *	 input events.
 */

/*
 * Event codes 0xf0 to 0xfc are reserved for future extensions.
 */

    #define SEQ_FULLSIZE 0xfd       /* Long events */
/*
 * SEQ_FULLSIZE events are used for loading patches/samples to the
 * synthesizer devices. These events are passed directly to the driver
 * of the associated synthesizer device. There is no limit to the size
 * of the extended events. These events are not queued but executed
 * immediately when the write() is called (execution can take several
 * seconds of time).
 *
 * When a SEQ_FULLSIZE message is written to the device, it must
 * be written using exactly one write() call. Other events cannot
 * be mixed to the same write.
 *
 * For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the
 * /dev/sequencer. Don't write other data together with the instrument structure
 * Set the key field of the structure to FM_PATCH. The device field is used to
 * route the patch to the corresponding device.
 *
 * For wave table use struct patch_info. Initialize the key field
 * to WAVE_PATCH.
 */
    #define SEQ_PRIVATE 0xfe    /* Low level HW dependent events (8 bytes) */
    #define SEQ_EXTENDED 0xff       /* Extended events (8 bytes) OBSOLETE */

/*
 * Record for FM patches
 */

typedef unsigned char sbi_instr_data[32];

struct sbi_instrument
{
    unsigned short key;     /* FM_PATCH or OPL3_PATCH */
    #define FM_PATCH _PATCHKEY(0x01)
    #define OPL3_PATCH _PATCHKEY(0x03)
    short device;       /*  Synth# (0-4)    */
    int channel;        /*  Program# to be initialized  */
    sbi_instr_data operators; /*  Register settings for operator cells (.SBI format)  */
};

struct synth_info
{               /* Read only */
    char name[30];
    int device;         /* 0-N. INITIALIZE BEFORE CALLING */
    int synth_type;
    #define SYNTH_TYPE_FM 0
    #define SYNTH_TYPE_SAMPLE 1
    #define SYNTH_TYPE_MIDI 2       /* Midi interface */

    int synth_subtype;
    #define FM_TYPE_ADLIB 0x00
    #define FM_TYPE_OPL3 0x01
    #define MIDI_TYPE_MPU401 0x401

    #define SAMPLE_TYPE_BASIC 0x10
    #define SAMPLE_TYPE_GUS SAMPLE_TYPE_BASIC
    #define SAMPLE_TYPE_WAVEFRONT 0x11

    int perc_mode;      /* No longer supported */
    int nr_voices;
    int nr_drums;       /* Obsolete field */
    int instr_bank_size;
    unsigned int capabilities;
    #define SYNTH_CAP_PERCMODE 0x00000001 /* No longer used */
    #define SYNTH_CAP_OPL3 0x00000002   /* Set if OPL3 supported */
    #define SYNTH_CAP_INPUT 0x00000004  /* Input (MIDI) device */
    int dummies[19];    /* Reserve space */
};

struct sound_timer_info
{
    char name[32];
    int caps;
};

struct midi_info        /* OBSOLETE */
{
    char name[30];
    int device;         /* 0-N. INITIALIZE BEFORE CALLING */
    unsigned int capabilities;  /* To be defined later */
    int dev_type;
    int dummies[18];    /* Reserve space */
};

/*
 * Level 2 event types for /dev/sequencer
 */

/*
 * The 4 most significant bits of byte 0 specify the class of
 * the event:
 *
 *	0x8X = system level events,
 *	0x9X = device/port specific events, event[1] = device/port,
 *		The last 4 bits give the subtype:
 *			0x02	= Channel event (event[3] = chn).
 *			0x01	= note event (event[4] = note).
 *			(0x01 is not used alone but always with bit 0x02).
 *	       event[2] = MIDI message code (0x80=note off etc.)
 *
 */

    #define EV_SEQ_LOCAL 0x80
    #define EV_TIMING 0x81
    #define EV_CHN_COMMON 0x92
    #define EV_CHN_VOICE 0x93
    #define EV_SYSEX 0x94
    #define EV_SYSTEM 0x95      /* MIDI system and real time messages (input only) */
/*
 * Event types 200 to 220 are reserved for application use.
 * These numbers will not be used by the driver.
 */

/*
 * Events for event type EV_CHN_VOICE
 */

    #define MIDI_NOTEOFF 0x80
    #define MIDI_NOTEON 0x90
    #define MIDI_KEY_PRESSURE 0xA0

/*
 * Events for event type EV_CHN_COMMON
 */

    #define MIDI_CTL_CHANGE 0xB0
    #define MIDI_PGM_CHANGE 0xC0
    #define MIDI_CHN_PRESSURE 0xD0
    #define MIDI_PITCH_BEND 0xE0

    #define MIDI_SYSTEM_PREFIX 0xF0

/*
 * Timer event types
 */
    #define TMR_WAIT_REL 1      /* Time relative to the prev time */
    #define TMR_WAIT_ABS 2      /* Absolute time since TMR_START */
    #define TMR_STOP 3
    #define TMR_START 4
    #define TMR_CONTINUE 5
    #define TMR_TEMPO 6
    #define TMR_ECHO 8
    #define TMR_CLOCK 9     /* MIDI clock */
    #define TMR_SPP 10      /* Song position pointer */
    #define TMR_TIMESIG 11  /* Time signature */

/*
 *	Local event types
 */
    #define LOCL_STARTAUDIO 1
    #define LOCL_STARTAUDIO2 2
    #define LOCL_STARTAUDIO3 3
    #define LOCL_STARTAUDIO4 4

    #if (!defined (__KERNEL__) && !defined (KERNEL) && !defined (INKERNEL) && !defined (_KERNEL)) || defined (USE_SEQ_MACROS)
/*
 * Some convenience macros to simplify programming of the
 * /dev/sequencer interface
 *
 * These macros define the API which should be used when possible.
 */
        #define SEQ_DECLAREBUF()        SEQ_USE_EXTBUF()

void seqbuf_dump(void);     /* This function must be provided by programs */

EXTERNC int OSS_init(int seqfd, int buflen);
EXTERNC void OSS_seqbuf_dump(int fd, unsigned char* buf, int buflen);
EXTERNC void OSS_seq_advbuf(int len, int fd, unsigned char* buf, int buflen);
EXTERNC void OSS_seq_needbuf(int len, int fd, unsigned char* buf,
                             int buflen);
EXTERNC void OSS_patch_caching(int dev, int chn, int patch, int fd,
                               unsigned char* buf, int buflen);
EXTERNC void OSS_drum_caching(int dev, int chn, int patch, int fd,
                              unsigned char* buf, int buflen);
EXTERNC void OSS_write_patch(int fd, unsigned char* buf, int len);
EXTERNC int OSS_write_patch2(int fd, unsigned char* buf, int len);

        #define SEQ_PM_DEFINES int __foo_bar___
        #ifdef OSSLIB
            #define SEQ_USE_EXTBUF() \
    EXTERNC unsigned char* _seqbuf; \
    EXTERNC int _seqbuflen; EXTERNC int _seqbufptr
            #define SEQ_DEFINEBUF(len) SEQ_USE_EXTBUF(); static int _requested_seqbuflen = len
            #define _SEQ_ADVBUF(len) OSS_seq_advbuf(len, seqfd, _seqbuf, _seqbuflen)
            #define _SEQ_NEEDBUF(len) OSS_seq_needbuf(len, seqfd, _seqbuf, _seqbuflen)
            #define SEQ_DUMPBUF() OSS_seqbuf_dump(seqfd, _seqbuf, _seqbuflen)

            #define SEQ_LOAD_GMINSTR(dev, instr) \
    OSS_patch_caching(dev, -1, instr, seqfd, _seqbuf, _seqbuflen)
            #define SEQ_LOAD_GMDRUM(dev, drum) \
    OSS_drum_caching(dev, -1, drum, seqfd, _seqbuf, _seqbuflen)
        #else /* !OSSLIB */

            #define SEQ_LOAD_GMINSTR(dev, instr)
            #define SEQ_LOAD_GMDRUM(dev, drum)

            #define SEQ_USE_EXTBUF() \
    EXTERNC unsigned char _seqbuf[]; \
    EXTERNC int _seqbuflen; EXTERNC int _seqbufptr

            #ifndef USE_SIMPLE_MACROS
/* Sample seqbuf_dump() implementation:
 *
 *	SEQ_DEFINEBUF (2048);	-- Defines a buffer for 2048 bytes
 *
 *	int seqfd;		-- The file descriptor for /dev/sequencer.
 *
 *	void
 *	seqbuf_dump ()
 *	{
 *	  if (_seqbufptr)
 *	    if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 *	      {
 *		perror ("write /dev/sequencer");
 *		exit (-1);
 *	      }
 *	  _seqbufptr = 0;
 *	}
 */

                #define SEQ_DEFINEBUF(len) \
    unsigned char _seqbuf[len]; int _seqbuflen = len; int _seqbufptr = 0
                #define _SEQ_NEEDBUF(len) \
    if ((_seqbufptr + (len)) > _seqbuflen) seqbuf_dump()
                #define _SEQ_ADVBUF(len) _seqbufptr += len
                #define SEQ_DUMPBUF seqbuf_dump
            #else
/*
 * This variation of the sequencer macros is used just to format one event
 * using fixed buffer.
 *
 * The program using the macro library must define the following macros before
 * using this library.
 *
 * #define _seqbuf       name of the buffer (unsigned char[])
 * #define _SEQ_ADVBUF(len)	 If the applic needs to know the exact
 *				 size of the event, this macro can be used.
 *				 Otherwise this must be defined as empty.
 * #define _seqbufptr		 Define the name of index variable or 0 if
 *				 not required.
 */
                #define _SEQ_NEEDBUF(len) /* empty */
            #endif
        #endif /* !OSSLIB */

        #define SEQ_VOLUME_MODE(dev, mode) \
    { _SEQ_NEEDBUF(8); \
      _seqbuf[_seqbufptr] = SEQ_EXTENDED; \
      _seqbuf[_seqbufptr + 1] = SEQ_VOLMODE; \
      _seqbuf[_seqbufptr + 2] = (dev); \
      _seqbuf[_seqbufptr + 3] = (mode); \
      _seqbuf[_seqbufptr + 4] = 0; \
      _seqbuf[_seqbufptr + 5] = 0; \
      _seqbuf[_seqbufptr + 6] = 0; \
      _seqbuf[_seqbufptr + 7] = 0; \
      _SEQ_ADVBUF(8); }

/*
 * Midi voice messages
 */

        #define _CHN_VOICE(dev, event, chn, note, parm) \
    { _SEQ_NEEDBUF(8); \
      _seqbuf[_seqbufptr] = EV_CHN_VOICE; \
      _seqbuf[_seqbufptr + 1] = (dev); \
      _seqbuf[_seqbufptr + 2] = (event); \
      _seqbuf[_seqbufptr + 3] = (chn); \
      _seqbuf[_seqbufptr + 4] = (note); \
      _seqbuf[_seqbufptr + 5] = (parm); \
      _seqbuf[_seqbufptr + 6] = (0); \
      _seqbuf[_seqbufptr + 7] = 0; \
      _SEQ_ADVBUF(8); }

        #define SEQ_START_NOTE(dev, chn, note, vol) \
    _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)

        #define SEQ_STOP_NOTE(dev, chn, note, vol) \
    _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)

        #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
    _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)

/*
 * Midi channel messages
 */

        #define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
    { _SEQ_NEEDBUF(8); \
      _seqbuf[_seqbufptr] = EV_CHN_COMMON; \
      _seqbuf[_seqbufptr + 1] = (dev); \
      _seqbuf[_seqbufptr + 2] = (event); \
      _seqbuf[_seqbufptr + 3] = (chn); \
      _seqbuf[_seqbufptr + 4] = (p1); \
      _seqbuf[_seqbufptr + 5] = (p2); \
      *(short*)&_seqbuf[_seqbufptr + 6] = (w14); \
      _SEQ_ADVBUF(8); }
/*
 * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
 * sending any MIDI bytes but it's absolutely not possible. Trying to do
 * so _will_ cause problems with MPU401 intelligent mode).
 *
 * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
 * sent by calling SEQ_SYSEX() several times (there must be no other events
 * between them). First sysex fragment must have 0xf0 in the first byte
 * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
 * between these sysex start and end markers cannot be larger than 0x7f. Also
 * lengths of each fragments (except the last one) must be 6.
 *
 * Breaking the above rules may work with some MIDI ports but is likely to
 * cause fatal problems with some other devices (such as MPU401).
 */
        #define SEQ_SYSEX(dev, buf, len) \
    { int ii, ll = (len); \
      unsigned char* bufp = buf; \
      if (ll > 6) ll = 6; \
      _SEQ_NEEDBUF(8); \
      _seqbuf[_seqbufptr] = EV_SYSEX; \
      _seqbuf[_seqbufptr + 1] = (dev); \
      for (ii = 0; ii < ll; ii++) \
          _seqbuf[_seqbufptr + ii + 2] = bufp[ii]; \
      for (ii = ll; ii < 6; ii++) \
          _seqbuf[_seqbufptr + ii + 2] = 0xff; \
      _SEQ_ADVBUF(8); }

        #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
    _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)

        #define SEQ_SET_PATCH SEQ_PGM_CHANGE
        #ifdef OSSLIB
            #define SEQ_PGM_CHANGE(dev, chn, patch) \
    { OSS_patch_caching(dev, chn, patch, seqfd, _seqbuf, _seqbuflen); \
      _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0); }
        #else
            #define SEQ_PGM_CHANGE(dev, chn, patch) \
    _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
        #endif

        #define SEQ_CONTROL(dev, chn, controller, value) \
    _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)

        #define SEQ_BENDER(dev, chn, value) \
    _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)

        #define SEQ_V2_X_CONTROL(dev, voice, controller, value) \
    { _SEQ_NEEDBUF(8); \
      _seqbuf[_seqbufptr] = SEQ_EXTENDED; \
      _seqbuf[_seqbufptr + 1] = SEQ_CONTROLLER; \
      _seqbuf[_seqbufptr + 2] = (dev); \
      _seqbuf[_seqbufptr + 3] = (voice); \
      _seqbuf[_seqbufptr + 4] = (controller); \
      _seqbuf[_seqbufptr + 5] = ((value) & 0xff); \
      _seqbuf[_seqbufptr + 6] = ((value >> 8) & 0xff); \
      _seqbuf[_seqbufptr + 7] = 0; \
      _SEQ_ADVBUF(8); }
/*
 * The following 5 macros are incorrectly implemented and obsolete.
 * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
 */
        #define SEQ_PITCHBEND(dev, voice, value) \
    SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
        #define SEQ_BENDER_RANGE(dev, voice, value) \
    SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
        #define SEQ_EXPRESSION(dev, voice, value) \
    SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value * 128)
        #define SEQ_MAIN_VOLUME(dev, voice, value) \
    SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value * 16383) / 100)
        #define SEQ_PANNING(dev, voice, pos) \
    SEQ_CONTROL(dev, voice, CTL_PAN, (pos + 128) / 2)

/*
 * Timing and syncronization macros
 */

        #define _TIMER_EVENT(ev, parm)  { _SEQ_NEEDBUF(8); \
                                          _seqbuf[_seqbufptr + 0] = EV_TIMING; \
                                          _seqbuf[_seqbufptr + 1] = (ev); \
                                          _seqbuf[_seqbufptr + 2] = 0; \
                                          _seqbuf[_seqbufptr + 3] = 0; \
                                          *(unsigned int*)&_seqbuf[_seqbufptr + 4] = (parm); \
                                          _SEQ_ADVBUF(8); }

        #define SEQ_START_TIMER()       _TIMER_EVENT(TMR_START, 0)
        #define SEQ_STOP_TIMER()        _TIMER_EVENT(TMR_STOP, 0)
        #define SEQ_CONTINUE_TIMER()        _TIMER_EVENT(TMR_CONTINUE, 0)
        #define SEQ_WAIT_TIME(ticks)        _TIMER_EVENT(TMR_WAIT_ABS, ticks)
        #define SEQ_DELTA_TIME(ticks)       _TIMER_EVENT(TMR_WAIT_REL, ticks)
        #define SEQ_ECHO_BACK(key)      _TIMER_EVENT(TMR_ECHO, key)
        #define SEQ_SET_TEMPO(value)        _TIMER_EVENT(TMR_TEMPO, value)
        #define SEQ_SONGPOS(pos)        _TIMER_EVENT(TMR_SPP, pos)
        #define SEQ_TIME_SIGNATURE(sig)     _TIMER_EVENT(TMR_TIMESIG, sig)

/*
 * Local control events
 */

        #define _LOCAL_EVENT(ev, parm)      { _SEQ_NEEDBUF(8); \
                                              _seqbuf[_seqbufptr + 0] = EV_SEQ_LOCAL; \
                                              _seqbuf[_seqbufptr + 1] = (ev); \
                                              _seqbuf[_seqbufptr + 2] = 0; \
                                              _seqbuf[_seqbufptr + 3] = 0; \
                                              *(unsigned int*)&_seqbuf[_seqbufptr + 4] = (parm); \
                                              _SEQ_ADVBUF(8); }

        #define SEQ_PLAYAUDIO(devmask)      _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
        #define SEQ_PLAYAUDIO2(devmask)     _LOCAL_EVENT(LOCL_STARTAUDIO2, devmask)
        #define SEQ_PLAYAUDIO3(devmask)     _LOCAL_EVENT(LOCL_STARTAUDIO3, devmask)
        #define SEQ_PLAYAUDIO4(devmask)     _LOCAL_EVENT(LOCL_STARTAUDIO4, devmask)
/*
 * Events for the level 1 interface only
 */

        #define SEQ_MIDIOUT(device, byte)   { _SEQ_NEEDBUF(4); \
                                              _seqbuf[_seqbufptr] = SEQ_MIDIPUTC; \
                                              _seqbuf[_seqbufptr + 1] = (byte); \
                                              _seqbuf[_seqbufptr + 2] = (device); \
                                              _seqbuf[_seqbufptr + 3] = 0; \
                                              _SEQ_ADVBUF(4); }

/*
 * Patch loading.
 */
        #ifdef OSSLIB
            #define SEQ_WRPATCH(patchx, len) \
    OSS_write_patch(seqfd, (char*)(patchx), len)
            #define SEQ_WRPATCH2(patchx, len) \
    OSS_write_patch2(seqfd, (char*)(patchx), len)
        #else
            #define SEQ_WRPATCH(patchx, len) \
    { if (_seqbufptr) SEQ_DUMPBUF(); \
      if (write(seqfd, (char*)(patchx), len) == -1) \
          perror("Write patch: /dev/sequencer");}
            #define SEQ_WRPATCH2(patchx, len) \
    (SEQ_DUMPBUF(), write(seqfd, (char*)(patchx), len))
        #endif

    #endif
#endif /* ifndef DISABLE_SEQUENCER */

/*
 ****************************************************************************
 * ioctl commands for the /dev/midi##
 ****************************************************************************/
#define SNDCTL_MIDI_PRETIME __SIOWR('m', 0, int)

#if 0
/*
 * The SNDCTL_MIDI_MPUMODE and SNDCTL_MIDI_MPUCMD calls
 * are completely obsolete. The hardware device (MPU-401 "intelligent mode"
 * and compatibles) has disappeared from the market 10 years ago so there
 * is no need for this stuff. The MPU-401 "UART" mode devices don't support
 * this stuff.
 */
typedef struct
{
    unsigned char cmd;
    char nr_args, nr_returns;
    unsigned char data[30];
} mpu_command_rec;

    #define SNDCTL_MIDI_MPUMODE __SIOWR('m', 1, int)
    #define SNDCTL_MIDI_MPUCMD __SIOWR('m', 2, mpu_command_rec)
#endif

/*
 * SNDCTL_MIDI_MTCINPUT turns on a mode where OSS automatically inserts
 * MTC quarter frame messages (F1 xx) to the input.
 * The argument is the MTC mode:
 *
 *  -1 = Turn MTC messages OFF (default)
 *	24 = 24 FPS
 *	25 = 25 FPS
 *	29 = 30 FPS drop frame
 *	30 = 30 FPS
 *
 * Note that 25 FPS mode is probably the only mode that is supported. Other
 * modes may be supported in the future versions of OSS, 25 FPS is handy
 * because it generates 25*4=100 quarter frame messages per second which
 * matches the usual 100 HZ system timer rate).
 *
 * The quarter frame timer will be reset to 0:00:00:00.0 at the moment this
 * ioctl is made.
 */
#define SNDCTL_MIDI_MTCINPUT __SIOWR('m', 3, int)

/*
 * MTC/SMPTE time code record (for future use)
 */
typedef struct
{
    unsigned char hours, minutes, seconds, frames, qframes;
    char direction;
#define MTC_DIR_STOPPED 0
#define MTC_DIR_FORWARD 1
#define MTC_DIR_BACKWARD -1
    unsigned char time_code_type;
    unsigned int flags;
} oss_mtc_data_t;

#define SNDCTL_MIDI_SETMODE __SIOWR('m', 6, int)
#define MIDI_MODE_TRADITIONAL 0
#define MIDI_MODE_TIMED 1           /* Input times are in MIDI ticks */
#define MIDI_MODE_TIMED_ABS 2           /* Input times are absolute (usecs) */

/*
 * Packet header for MIDI_MODE_TIMED and MIDI_MODE_TIMED_ABS
 */
typedef unsigned long long oss_midi_time_t; /* Variable type for MIDI time (clock ticks) */

typedef struct
{
    int magic;          /* Initialize to MIDI_HDR_MAGIC */
#define MIDI_HDR_MAGIC -1
    unsigned short event_type;
#define MIDI_EV_WRITE 0             /* Write or read (with payload) */
#define MIDI_EV_TEMPO 1
#define MIDI_EV_ECHO 2
#define MIDI_EV_START 3
#define MIDI_EV_STOP 4
#define MIDI_EV_CONTINUE 5
#define MIDI_EV_XPRESSWRITE 6
#define MIDI_EV_TIMEBASE 7
#define MIDI_EV_DEVCTL 8            /* Device control read/write */
    unsigned short options;
#define MIDI_OPT_NONE 0x0000
#define MIDI_OPT_TIMED 0x0001
#define MIDI_OPT_CONTINUATION 0x0002
#define MIDI_OPT_USECTIME 0x0004        /* Time is absolute (in usecs) */
#define MIDI_OPT_BUSY 0x0008            /* Reserved for internal use */
    oss_midi_time_t time;
    int parm;
    int filler[3];      /* Fur future expansion - init to zeros */
} midi_packet_header_t;
/*
 * MIDI_PAYLOAD_SIZE is the maximum size of one MIDI input chunk. It must be
 * less (or equal) than 1024 which is the read size recommended in the
 * documentation. TODO: Explain this better.
 */
#define MIDI_PAYLOAD_SIZE 1000

typedef struct
{
    midi_packet_header_t hdr;
    unsigned char payload[MIDI_PAYLOAD_SIZE];
} midi_packet_t;

#define SNDCTL_MIDI_TIMEBASE __SIOWR('m', 7, int)
#define SNDCTL_MIDI_TEMPO __SIOWR('m', 8, int)
/*
 * User land MIDI servers (synths) can use SNDCTL_MIDI_SET_LATENCY
 * to request MIDI events to be sent to them in advance. The parameter
 * (in microseconds) tells how much before the events are submitted.
 *
 * This feature is only valid for loopback devices and possibly some other
 * types of virtual devices.
 */
#define SNDCTL_MIDI_SET_LATENCY __SIOW('m', 9, int)
/*
 ****************************************************************************
 * IOCTL commands for /dev/dsp
 ****************************************************************************/

#define SNDCTL_DSP_HALT __SIO('P', 0)
#define SNDCTL_DSP_RESET SNDCTL_DSP_HALT        /* Old name */
#define SNDCTL_DSP_SYNC __SIO('P', 1)
#define SNDCTL_DSP_SPEED __SIOWR('P', 2, int)

/* SNDCTL_DSP_STEREO is obsolete - use SNDCTL_DSP_CHANNELS instead */
#define SNDCTL_DSP_STEREO __SIOWR('P', 3, int)
/* SNDCTL_DSP_STEREO is obsolete - use SNDCTL_DSP_CHANNELS instead */

#define SNDCTL_DSP_GETBLKSIZE __SIOWR('P', 4, int)
#define SNDCTL_DSP_SAMPLESIZE SNDCTL_DSP_SETFMT
#define SNDCTL_DSP_CHANNELS __SIOWR('P', 6, int)
#define SNDCTL_DSP_POST __SIO('P', 8)
#define SNDCTL_DSP_SUBDIVIDE __SIOWR('P', 9, int)
#define SNDCTL_DSP_SETFRAGMENT __SIOWR('P', 10, int)

/* Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
#define SNDCTL_DSP_GETFMTS __SIOR('P', 11, int)         /* Returns a mask */
#define SNDCTL_DSP_SETFMT __SIOWR('P', 5, int)      /* Selects ONE fmt */
#define AFMT_QUERY 0x00000000       /* Return current fmt */
#define AFMT_MU_LAW 0x00000001
#define AFMT_A_LAW 0x00000002
#define AFMT_IMA_ADPCM 0x00000004
#define AFMT_U8 0x00000008
#define AFMT_S16_LE 0x00000010      /* Little endian signed 16 */
#define AFMT_S16_BE 0x00000020      /* Big endian signed 16 */
#define AFMT_S8 0x00000040
#define AFMT_U16_LE 0x00000080      /* Little endian U16 */
#define AFMT_U16_BE 0x00000100      /* Big endian U16 */
#define AFMT_MPEG 0x00000200        /* MPEG (2) audio */

/* AC3 _compressed_ bitstreams (See Programmer's Guide for details). */
#define AFMT_AC3 0x00000400
/* Ogg Vorbis _compressed_ bit streams */
#define AFMT_VORBIS 0x00000800

/* 32 bit formats (MSB aligned) formats */
#define AFMT_S32_LE 0x00001000
#define AFMT_S32_BE 0x00002000

/* Reserved for _native_ endian double precision IEEE floating point */
#define AFMT_FLOAT 0x00004000

/* 24 bit formats (LSB aligned in 32 bit word) formats */
#define AFMT_S24_LE 0x00008000
#define AFMT_S24_BE 0x00010000

/*
 * S/PDIF raw format. In this format the S/PDIF frames (including all
 * control and user bits) are included in the data stream. Each sample
 * is stored in a 32 bit frame (see IEC-958 for more info). This format
 * is supported by very few devices and it's only usable for purposes
 * where full access to the control/user bits is required (real time control).
 */
#define AFMT_SPDIF_RAW 0x00020000

/* 24 bit packed (3 byte) little endian format (USB compatibility) */
#define AFMT_S24_PACKED 0x00040000


/*
 * Some big endian/little endian handling macros (native endian and opposite
 * endian formats). The usage of these macros is described in the OSS
 * Programmer's Manual.
 */

#if defined (_AIX) || defined (AIX) || defined (sparc) || defined (__hppa) || defined (PPC) || defined (__powerpc__) && !defined (i386) && !defined (__i386) && !defined (__i386__)

/* Big endian machines */
    #define _PATCHKEY(id) (0xfd00 | id)
    #define AFMT_S16_NE AFMT_S16_BE
    #define AFMT_U16_NE AFMT_U16_BE
    #define AFMT_S32_NE AFMT_S32_BE
    #define AFMT_S24_NE AFMT_S24_BE
    #define AFMT_S16_OE AFMT_S16_LE
    #define AFMT_S32_OE AFMT_S32_LE
    #define AFMT_S24_OE AFMT_S24_LE
#else
    #define _PATCHKEY(id) ((id << 8) | 0xfd)
    #define AFMT_S16_NE AFMT_S16_LE
    #define AFMT_U16_NE AFMT_U16_LE
    #define AFMT_S32_NE AFMT_S32_LE
    #define AFMT_S24_NE AFMT_S24_LE
    #define AFMT_S16_OE AFMT_S16_BE
    #define AFMT_S32_OE AFMT_S32_BE
    #define AFMT_S24_OE AFMT_S24_BE
#endif
/*
 * Buffer status queries.
 */
typedef struct audio_buf_info
{
    int fragments;      /* # of available fragments (partially usend ones not counted) */
    int fragstotal;     /* Total # of fragments allocated */
    int fragsize;       /* Size of a fragment in bytes */
    int bytes;          /* Available space in bytes (includes partially used fragments) */
    /* Note! 'bytes' could be more than fragments*fragsize */
} audio_buf_info;

#define SNDCTL_DSP_GETOSPACE __SIOR('P', 12, audio_buf_info)
#define SNDCTL_DSP_GETISPACE __SIOR('P', 13, audio_buf_info)
#define SNDCTL_DSP_GETCAPS __SIOR('P', 15, int)
#define PCM_CAP_REVISION 0x000000ff         /* Bits for revision level (0 to 255) */
#define PCM_CAP_DUPLEX 0x00000100           /* Full duplex record/playback */
#define PCM_CAP_REALTIME 0x00000200         /* Not in use */
#define PCM_CAP_BATCH 0x00000400            /* Device has some kind of */
/* internal buffers which may */
/* cause some delays and */
/* decrease precision of timing */
#define PCM_CAP_COPROC 0x00000800           /* Has a coprocessor */
/* Sometimes it's a DSP */
/* but usually not */
#define PCM_CAP_TRIGGER 0x00001000          /* Supports SETTRIGGER */
#define PCM_CAP_MMAP 0x00002000         /* Supports mmap() */
#define PCM_CAP_MULTI 0x00004000            /* Supports multiple open */
#define PCM_CAP_BIND 0x00008000         /* Supports binding to front/rear/center/lfe */
#define PCM_CAP_INPUT 0x00010000                /* Supports recording */
#define PCM_CAP_OUTPUT 0x00020000               /* Supports playback */
#define PCM_CAP_VIRTUAL 0x00040000          /* Virtuial device */
/* 0x00040000 and 0x00080000 reserved for future use */

/* Analog/digital control capabilities */
#define PCM_CAP_ANALOGOUT 0x00100000
#define PCM_CAP_ANALOGIN 0x00200000
#define PCM_CAP_DIGITALOUT 0x00400000
#define PCM_CAP_DIGITALIN 0x00800000
#define PCM_CAP_ADMASK 0x00f00000
/*
 * NOTE! (capabilities & PCM_CAP_ADMASK)==0 means just that the
 * digital/analog interface control features are not supported by the
 * device/driver. However the device still supports analog, digital or
 * both inputs/outputs (depending on the device). See the OSS Programmer's
 * Guide for full details.
 */
#define PCM_CAP_SHADOW 0x01000000           /* "Shadow" device */

/*
 * Preferred channel usage. These bits can be used to
 * give recommendations to the application. Used by few drivers.
 * For example if ((caps & DSP_CH_MASK) == DSP_CH_MONO) means that
 * the device works best in mono mode. However it doesn't necessarily mean
 * that the device cannot be used in stereo. These bits should only be used
 * special applications such as multi track hard disk recorders to find out
 * the initial setup. However the user should be able to override this
 * selection.
 *
 * To find out which modes are actually supported the application should
 * try to select them using SNDCTL_DSP_CHANNELS.
 */
#define DSP_CH_MASK 0x06000000          /* Mask */
#define DSP_CH_ANY 0x00000000           /* No preferred mode */
#define DSP_CH_MONO 0x02000000
#define DSP_CH_STEREO 0x04000000
#define DSP_CH_MULTI 0x06000000         /* More than two channels */

#define PCM_CAP_HIDDEN 0x08000000           /* Hidden device */
#define PCM_CAP_FREERATE 0x10000000
#define PCM_CAP_MODEM 0x20000000            /* Modem device */
#define PCM_CAP_DEFAULT 0x40000000          /* "Default" device */

/*
 * The PCM_CAP_* capability names were known as DSP_CAP_* prior OSS 4.0
 * so it's necessary to define the older names too.
 */
#define DSP_CAP_ADMASK PCM_CAP_ADMASK
#define DSP_CAP_ANALOGIN PCM_CAP_ANALOGIN
#define DSP_CAP_ANALOGOUT PCM_CAP_ANALOGOUT
#define DSP_CAP_BATCH PCM_CAP_BATCH
#define DSP_CAP_BIND PCM_CAP_BIND
#define DSP_CAP_COPROC PCM_CAP_COPROC
#define DSP_CAP_DEFAULT PCM_CAP_DEFAULT
#define DSP_CAP_DIGITALIN PCM_CAP_DIGITALIN
#define DSP_CAP_DIGITALOUT PCM_CAP_DIGITALOUT
#define DSP_CAP_DUPLEX PCM_CAP_DUPLEX
#define DSP_CAP_FREERATE PCM_CAP_FREERATE
#define DSP_CAP_HIDDEN PCM_CAP_HIDDEN
#define DSP_CAP_INPUT PCM_CAP_INPUT
#define DSP_CAP_MMAP PCM_CAP_MMAP
#define DSP_CAP_MODEM PCM_CAP_MODEM
#define DSP_CAP_MULTI PCM_CAP_MULTI
#define DSP_CAP_OUTPUT PCM_CAP_OUTPUT
#define DSP_CAP_REALTIME PCM_CAP_REALTIME
#define DSP_CAP_REVISION PCM_CAP_REVISION
#define DSP_CAP_SHADOW PCM_CAP_SHADOW
#define DSP_CAP_TRIGGER PCM_CAP_TRIGGER
#define DSP_CAP_VIRTUAL PCM_CAP_VIRTUAL

#define SNDCTL_DSP_GETTRIGGER __SIOR('P', 16, int)
#define SNDCTL_DSP_SETTRIGGER __SIOW('P', 16, int)
#define PCM_ENABLE_INPUT 0x00000001
#define PCM_ENABLE_OUTPUT 0x00000002

typedef struct count_info
{
    unsigned int bytes;     /* Total # of bytes processed */
    int blocks;         /* # of fragment transitions since last time */
    int ptr;        /* Current DMA pointer value */
} count_info;

#define SNDCTL_DSP_GETIPTR __SIOR('P', 17, count_info)
#define SNDCTL_DSP_GETOPTR __SIOR('P', 18, count_info)

typedef struct buffmem_desc
{
    unsigned* buffer;
    int size;
} buffmem_desc;
#define SNDCTL_DSP_SETSYNCRO __SIO('P', 21)
#define SNDCTL_DSP_SETDUPLEX __SIO('P', 22)

#define SNDCTL_DSP_PROFILE __SIOW('P', 23, int)         /* OBSOLETE */
#define   APF_NORMAL 0      /* Normal applications */
#define   APF_NETWORK 1     /* Underruns probably caused by an "external" delay */
#define   APF_CPUINTENS 2   /* Underruns probably caused by "overheating" the CPU */

#define SNDCTL_DSP_GETODELAY __SIOR('P', 23, int)

typedef struct audio_errinfo
{
    int play_underruns;
    int rec_overruns;
    unsigned int play_ptradjust;
    unsigned int rec_ptradjust;
    int play_errorcount;
    int rec_errorcount;
    int play_lasterror;
    int rec_lasterror;
    int play_errorparm;
    int rec_errorparm;
    int filler[16];
} audio_errinfo;

#define SNDCTL_DSP_GETPLAYVOL __SIOR('P', 24, int)
#define SNDCTL_DSP_SETPLAYVOL __SIOWR('P', 24, int)
#define SNDCTL_DSP_GETERROR __SIOR('P', 25, audio_errinfo)
/*
 ****************************************************************************
 * Digital interface (S/PDIF) control interface
 */

typedef struct oss_digital_control
{
    unsigned int caps;
#define DIG_CBITIN_NONE 0x00000000
#define DIG_CBITIN_LIMITED 0x00000001
#define DIG_CBITIN_DATA 0x00000002
#define DIG_CBITIN_BYTE0 0x00000004
#define DIG_CBITIN_FULL 0x00000008
#define DIG_CBITIN_MASK 0x0000000f
#define DIG_CBITOUT_NONE 0x00000000
#define DIG_CBITOUT_LIMITED 0x00000010
#define DIG_CBITOUT_BYTE0 0x00000020
#define DIG_CBITOUT_FULL 0x00000040
#define DIG_CBITOUT_DATA 0x00000080
#define DIG_CBITOUT_MASK 0x000000f0
#define DIG_UBITIN 0x00000100
#define DIG_UBITOUT 0x00000200
#define DIG_VBITOUT 0x00000400
#define DIG_OUTRATE 0x00000800
#define DIG_INRATE 0x00001000
#define DIG_INBITS 0x00002000
#define DIG_OUTBITS 0x00004000
#define DIG_EXACT 0x00010000
#define DIG_PRO 0x00020000
#define DIG_CONSUMER 0x00040000
#define DIG_PASSTHROUGH 0x00080000
#define DIG_OUTSEL 0x00100000

    unsigned int valid;
#define VAL_CBITIN 0x00000001
#define VAL_UBITIN 0x00000002
#define VAL_CBITOUT 0x00000004
#define VAL_UBITOUT 0x00000008
#define VAL_ISTATUS 0x00000010
#define VAL_IRATE 0x00000020
#define VAL_ORATE 0x00000040
#define VAL_INBITS 0x00000080
#define VAL_OUTBITS 0x00000100
#define VAL_REQUEST 0x00000200
#define VAL_OUTSEL 0x00000400

#define VAL_OUTMASK (VAL_CBITOUT | VAL_UBITOUT | VAL_ORATE | VAL_OUTBITS | VAL_OUTSEL)

    unsigned int request, param;
#define SPD_RQ_PASSTHROUGH 1

    unsigned char cbitin[24];
    unsigned char ubitin[24];
    unsigned char cbitout[24];
    unsigned char ubitout[24];

    unsigned int outsel;
#define OUTSEL_DIGITAL 1
#define OUTSEL_ANALOG 2
#define OUTSEL_BOTH (OUTSEL_DIGITAL | OUTSEL_ANALOG)

    int in_data;        /* Audio/data if autodetectable by the receiver */
#define IND_UNKNOWN 0
#define IND_AUDIO 1
#define IND_DATA 2

    int in_locked;      /* Receiver locked */
#define LOCK_NOT_INDICATED 0
#define LOCK_UNLOCKED 1
#define LOCK_LOCKED 2

    int in_quality;     /* Input signal quality */
#define IN_QUAL_NOT_INDICATED 0
#define IN_QUAL_POOR 1
#define IN_QUAL_GOOD 2

    int in_vbit, out_vbit;  /* V bits */
#define VBIT_NOT_INDICATED 0
#define VBIT_OFF 1
#define VBIT_ON 2

    unsigned int in_errors; /* Various input errro conditions */
#define INERR_CRC 0x0001
#define INERR_QCODE_CRC 0x0002
#define INERR_PARITY 0x0004
#define INERR_BIPHASE 0x0008

    int srate_in, srate_out;
    int bits_in, bits_out;

    int filler[32];
} oss_digital_control;

#define SNDCTL_DSP_READCTL __SIOWR('P', 26, oss_digital_control)
#define SNDCTL_DSP_WRITECTL __SIOWR('P', 27, oss_digital_control)

/*
 ****************************************************************************
 * Sync groups for audio devices
 */
typedef struct oss_syncgroup
{
    int id;
    int mode;
    int filler[16];
} oss_syncgroup;

#define SNDCTL_DSP_SYNCGROUP __SIOWR('P', 28, oss_syncgroup)
#define SNDCTL_DSP_SYNCSTART __SIOW('P', 29, int)

/*
 **************************************************************************
 * "cooked" mode enables software based conversions for sample rate, sample
 * format (bits) and number of channels (mono/stereo). These conversions are
 * required with some devices that support only one sample rate or just stereo
 * to let the applications to use other formats. The cooked mode is enabled by
 * default. However it's necessary to disable this mode when mmap() is used or
 * when very deterministic timing is required. SNDCTL_DSP_COOKEDMODE is an
 * optional call introduced in OSS 3.9.6f. It's _error return must be ignored_
 * since normally this call will return erno=EINVAL.
 *
 * SNDCTL_DSP_COOKEDMODE must be called immediately after open before doing
 * anything else. Otherwise the call will not have any effect.
 */
#define SNDCTL_DSP_COOKEDMODE __SIOW('P', 30, int)

/*
 **************************************************************************
 * SNDCTL_DSP_SILENCE and SNDCTL_DSP_SKIP are new calls in OSS 3.99.0
 * that can be used to implement pause/continue during playback (no effect
 * on recording).
 */
#define SNDCTL_DSP_SILENCE __SIO('P', 31)
#define SNDCTL_DSP_SKIP __SIO('P', 32)
/*
 ****************************************************************************
 * Abort transfer (reset) functions for input and output
 */
#define SNDCTL_DSP_HALT_INPUT __SIO('P', 33)
#define SNDCTL_DSP_RESET_INPUT SNDCTL_DSP_HALT_INPUT    /* Old name */
#define SNDCTL_DSP_HALT_OUTPUT __SIO('P', 34)
#define SNDCTL_DSP_RESET_OUTPUT SNDCTL_DSP_HALT_OUTPUT  /* Old name */
/*
 ****************************************************************************
 * Low water level control
 */
#define SNDCTL_DSP_LOW_WATER __SIOW('P', 34, int)

/*
 ****************************************************************************
 * 64 bit pointer support. Only available in environments that support
 * the 64 bit (long long) integer type.
 */
#ifndef OSS_NO_LONG_LONG
typedef struct
{
    long long samples;
    int fifo_samples;
    int filler[32];     /* For future use */
} oss_count_t;

    #define SNDCTL_DSP_CURRENT_IPTR __SIOR('P', 35, oss_count_t)
    #define SNDCTL_DSP_CURRENT_OPTR __SIOR('P', 36, oss_count_t)
#endif

/*
 ****************************************************************************
 * Interface for selecting recording sources and playback output routings.
 */
#define SNDCTL_DSP_GET_RECSRC_NAMES __SIOR('P', 37, oss_mixer_enuminfo)
#define SNDCTL_DSP_GET_RECSRC __SIOR('P', 38, int)
#define SNDCTL_DSP_SET_RECSRC __SIOWR('P', 38, int)

#define SNDCTL_DSP_GET_PLAYTGT_NAMES __SIOR('P', 39, oss_mixer_enuminfo)
#define SNDCTL_DSP_GET_PLAYTGT __SIOR('P', 40, int)
#define SNDCTL_DSP_SET_PLAYTGT __SIOWR('P', 40, int)
#define SNDCTL_DSP_GETRECVOL __SIOR('P', 41, int)
#define SNDCTL_DSP_SETRECVOL __SIOWR('P', 41, int)

/*
 ***************************************************************************
 * Some calls for setting the channel assignment with multi channel devices
 * (see the manual for details).
 */
#ifndef OSS_NO_LONG_LONG
    #define SNDCTL_DSP_GET_CHNORDER __SIOR('P', 42, unsigned long long)
    #define SNDCTL_DSP_SET_CHNORDER __SIOWR('P', 42, unsigned long long)
    #define CHID_UNDEF 0
    #define CHID_L 1
    #define CHID_R 2
    #define CHID_C 3
    #define CHID_LFE 4
    #define CHID_LS 5
    #define CHID_RS 6
    #define CHID_LR 7
    #define CHID_RR 8
    #define CHNORDER_UNDEF 0x0000000000000000ULL
    #define CHNORDER_NORMAL 0x0000000087654321ULL
#endif

#define MAX_PEAK_CHANNELS 128
typedef unsigned short oss_peaks_t[MAX_PEAK_CHANNELS];
#define SNDCTL_DSP_GETIPEAKS __SIOR('P', 43, oss_peaks_t)
#define SNDCTL_DSP_GETOPEAKS __SIOR('P', 44, oss_peaks_t)

#define SNDCTL_DSP_POLICY __SIOW('P', 45, int)          /* See the manual */

/*
 ****************************************************************************
 * Few ioctl calls that are not official parts of OSS. They have been used
 * by few freeware implementations of OSS.
 */
#define SNDCTL_DSP_GETCHANNELMASK __SIOWR('P', 64, int)
#define SNDCTL_DSP_BIND_CHANNEL __SIOWR('P', 65, int)
#define DSP_BIND_QUERY 0x00000000
#define DSP_BIND_FRONT 0x00000001
#define DSP_BIND_SURR 0x00000002
#define DSP_BIND_CENTER_LFE 0x00000004
#define DSP_BIND_HANDSET 0x00000008
#define DSP_BIND_MIC 0x00000010
#define DSP_BIND_MODEM1 0x00000020
#define DSP_BIND_MODEM2 0x00000040
#define DSP_BIND_I2S 0x00000080
#define DSP_BIND_SPDIF 0x00000100
#define DSP_BIND_REAR 0x00000200

#ifndef NO_LEGACY_MIXER
/*
 ****************************************************************************
 * IOCTL commands for the "legacy " /dev/mixer API (obsolete)
 *
 * Mixer controls
 *
 * There can be up to 20 different analog mixer channels. The
 * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
 * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 * the devices supported by the particular mixer.
 *
 * {!notice This "legacy" mixer API is obsolete. It has been superceded
 * by a new one (see below).
 */

    #define SOUND_MIXER_NRDEVICES 28
    #define SOUND_MIXER_VOLUME 0
    #define SOUND_MIXER_BASS 1
    #define SOUND_MIXER_TREBLE 2
    #define SOUND_MIXER_SYNTH 3
    #define SOUND_MIXER_PCM 4
    #define SOUND_MIXER_SPEAKER 5
    #define SOUND_MIXER_LINE 6
    #define SOUND_MIXER_MIC 7
    #define SOUND_MIXER_CD 8
    #define SOUND_MIXER_IMIX 9  /*  Recording monitor  */
    #define SOUND_MIXER_ALTPCM 10
    #define SOUND_MIXER_RECLEV 11 /* Recording level */
    #define SOUND_MIXER_IGAIN 12 /* Input gain */
    #define SOUND_MIXER_OGAIN 13 /* Output gain */
/*
 * Some soundcards have three line level inputs (line, aux1 and aux2).
 * Since each card manufacturer has assigned different meanings to
 * these inputs, it's impractical to assign specific meanings
 * (eg line, cd, synth etc.) to them.
 */
    #define SOUND_MIXER_LINE1 14 /* Input source 1  (aux1) */
    #define SOUND_MIXER_LINE2 15 /* Input source 2  (aux2) */
    #define SOUND_MIXER_LINE3 16 /* Input source 3  (line) */
    #define SOUND_MIXER_DIGITAL1 17 /* Digital I/O 1 */
    #define SOUND_MIXER_DIGITAL2 18 /* Digital I/O 2 */
    #define SOUND_MIXER_DIGITAL3 19 /* Digital I/O 3 */
    #define SOUND_MIXER_PHONE 20 /* Phone */
    #define SOUND_MIXER_MONO 21 /* Mono Output */
    #define SOUND_MIXER_VIDEO 22 /* Video/TV (audio) in */
    #define SOUND_MIXER_RADIO 23 /* Radio in */
    #define SOUND_MIXER_DEPTH 24 /* Surround depth */
    #define SOUND_MIXER_REARVOL 25 /* Rear/Surround speaker vol */
    #define SOUND_MIXER_CENTERVOL 26 /* Center/LFE speaker vol */
    #define SOUND_MIXER_SIDEVOL 27 /* Side-Surround (8speaker) vol */

/*
 * Warning: SOUND_MIXER_SURRVOL is an old name of SOUND_MIXER_SIDEVOL.
 *          They are both assigned to the same mixer control. Don't
 *          use both control names in the same program/driver.
 */
    #define SOUND_MIXER_SURRVOL SOUND_MIXER_SIDEVOL

/* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
/* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
    #define SOUND_ONOFF_MIN 28
    #define SOUND_ONOFF_MAX 30

/* Note!	Number 31 cannot be used since the sign bit is reserved */
    #define SOUND_MIXER_NONE 31

/*
 * The following unsupported macros are no longer functional.
 * Use SOUND_MIXER_PRIVATE# macros in future.
 */
    #define SOUND_MIXER_ENHANCE SOUND_MIXER_NONE
    #define SOUND_MIXER_MUTE SOUND_MIXER_NONE
    #define SOUND_MIXER_LOUD SOUND_MIXER_NONE

    #define SOUND_DEVICE_LABELS \
    { "Vol  ", "Bass ", "Treble", "Synth", "Pcm  ", "Speaker ", "Line ", \
      "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
      "Aux1", "Aux2", "Aux3", "Digital1", "Digital2", "Digital3", \
      "Phone", "Mono", "Video", "Radio", "Depth", \
      "Rear", "Center", "Side" }

    #define SOUND_DEVICE_NAMES \
    { "vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
      "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
      "aux1", "aux2", "aux3", "dig1", "dig2", "dig3", \
      "phone", "mono", "video", "radio", "depth", \
      "rear", "center", "side" }

/*	Device bitmask identifiers	*/

    #define SOUND_MIXER_RECSRC 0xff /* Arg contains a bit for each recording source */
    #define SOUND_MIXER_DEVMASK 0xfe /* Arg contains a bit for each supported device */
    #define SOUND_MIXER_RECMASK 0xfd /* Arg contains a bit for each supported recording source */
    #define SOUND_MIXER_CAPS 0xfc
    #define SOUND_CAP_EXCL_INPUT 0x00000001 /* Only one recording source at a time */
    #define SOUND_CAP_NOLEGACY 0x00000004   /* For internal use only */
    #define SOUND_CAP_NORECSRC 0x00000008
    #define SOUND_MIXER_STEREODEVS 0xfb /* Mixer channels supporting stereo */

/* OSS/Free ONLY */
    #define SOUND_MIXER_OUTSRC 0xfa /* Arg contains a bit for each input source to output */
    #define SOUND_MIXER_OUTMASK 0xf9 /* Arg contains a bit for each supported input source to output */
/* OSS/Free ONLY */

/*	Device mask bits	*/

    #define SOUND_MASK_VOLUME (1 << SOUND_MIXER_VOLUME)
    #define SOUND_MASK_BASS (1 << SOUND_MIXER_BASS)
    #define SOUND_MASK_TREBLE (1 << SOUND_MIXER_TREBLE)
    #define SOUND_MASK_SYNTH (1 << SOUND_MIXER_SYNTH)
    #define SOUND_MASK_PCM (1 << SOUND_MIXER_PCM)
    #define SOUND_MASK_SPEAKER (1 << SOUND_MIXER_SPEAKER)
    #define SOUND_MASK_LINE (1 << SOUND_MIXER_LINE)
    #define SOUND_MASK_MIC (1 << SOUND_MIXER_MIC)
    #define SOUND_MASK_CD (1 << SOUND_MIXER_CD)
    #define SOUND_MASK_IMIX (1 << SOUND_MIXER_IMIX)
    #define SOUND_MASK_ALTPCM (1 << SOUND_MIXER_ALTPCM)
    #define SOUND_MASK_RECLEV (1 << SOUND_MIXER_RECLEV)
    #define SOUND_MASK_IGAIN (1 << SOUND_MIXER_IGAIN)
    #define SOUND_MASK_OGAIN (1 << SOUND_MIXER_OGAIN)
    #define SOUND_MASK_LINE1 (1 << SOUND_MIXER_LINE1)
    #define SOUND_MASK_LINE2 (1 << SOUND_MIXER_LINE2)
    #define SOUND_MASK_LINE3 (1 << SOUND_MIXER_LINE3)
    #define SOUND_MASK_DIGITAL1 (1 << SOUND_MIXER_DIGITAL1)
    #define SOUND_MASK_DIGITAL2 (1 << SOUND_MIXER_DIGITAL2)
    #define SOUND_MASK_DIGITAL3 (1 << SOUND_MIXER_DIGITAL3)
    #define SOUND_MASK_MONO (1 << SOUND_MIXER_MONO)
    #define SOUND_MASK_PHONE (1 << SOUND_MIXER_PHONE)
    #define SOUND_MASK_RADIO (1 << SOUND_MIXER_RADIO)
    #define SOUND_MASK_VIDEO (1 << SOUND_MIXER_VIDEO)
    #define SOUND_MASK_DEPTH (1 << SOUND_MIXER_DEPTH)
    #define SOUND_MASK_REARVOL (1 << SOUND_MIXER_REARVOL)
    #define SOUND_MASK_CENTERVOL (1 << SOUND_MIXER_CENTERVOL)
    #define SOUND_MASK_SIDEVOL (1 << SOUND_MIXER_SIDEVOL)

/* Note! SOUND_MASK_SURRVOL is alias of SOUND_MASK_SIDEVOL */
    #define SOUND_MASK_SURRVOL (1 << SOUND_MIXER_SIDEVOL)

/* Obsolete macros */
    #define SOUND_MASK_MUTE (1 << SOUND_MIXER_MUTE)
    #define SOUND_MASK_ENHANCE (1 << SOUND_MIXER_ENHANCE)
    #define SOUND_MASK_LOUD (1 << SOUND_MIXER_LOUD)

    #define MIXER_READ(dev)         __SIOR('M', dev, int)
    #define SOUND_MIXER_READ_VOLUME MIXER_READ(SOUND_MIXER_VOLUME)
    #define SOUND_MIXER_READ_BASS MIXER_READ(SOUND_MIXER_BASS)
    #define SOUND_MIXER_READ_TREBLE MIXER_READ(SOUND_MIXER_TREBLE)
    #define SOUND_MIXER_READ_SYNTH MIXER_READ(SOUND_MIXER_SYNTH)
    #define SOUND_MIXER_READ_PCM MIXER_READ(SOUND_MIXER_PCM)
    #define SOUND_MIXER_READ_SPEAKER MIXER_READ(SOUND_MIXER_SPEAKER)
    #define SOUND_MIXER_READ_LINE MIXER_READ(SOUND_MIXER_LINE)
    #define SOUND_MIXER_READ_MIC MIXER_READ(SOUND_MIXER_MIC)
    #define SOUND_MIXER_READ_CD MIXER_READ(SOUND_MIXER_CD)
    #define SOUND_MIXER_READ_IMIX MIXER_READ(SOUND_MIXER_IMIX)
    #define SOUND_MIXER_READ_ALTPCM MIXER_READ(SOUND_MIXER_ALTPCM)
    #define SOUND_MIXER_READ_RECLEV MIXER_READ(SOUND_MIXER_RECLEV)
    #define SOUND_MIXER_READ_IGAIN MIXER_READ(SOUND_MIXER_IGAIN)
    #define SOUND_MIXER_READ_OGAIN MIXER_READ(SOUND_MIXER_OGAIN)
    #define SOUND_MIXER_READ_LINE1 MIXER_READ(SOUND_MIXER_LINE1)
    #define SOUND_MIXER_READ_LINE2 MIXER_READ(SOUND_MIXER_LINE2)
    #define SOUND_MIXER_READ_LINE3 MIXER_READ(SOUND_MIXER_LINE3)

/* Obsolete macros */
    #define SOUND_MIXER_READ_MUTE MIXER_READ(SOUND_MIXER_MUTE)
    #define SOUND_MIXER_READ_ENHANCE MIXER_READ(SOUND_MIXER_ENHANCE)
    #define SOUND_MIXER_READ_LOUD MIXER_READ(SOUND_MIXER_LOUD)

    #define SOUND_MIXER_READ_RECSRC MIXER_READ(SOUND_MIXER_RECSRC)
    #define SOUND_MIXER_READ_DEVMASK MIXER_READ(SOUND_MIXER_DEVMASK)
    #define SOUND_MIXER_READ_RECMASK MIXER_READ(SOUND_MIXER_RECMASK)
    #define SOUND_MIXER_READ_STEREODEVS MIXER_READ(SOUND_MIXER_STEREODEVS)
    #define SOUND_MIXER_READ_CAPS MIXER_READ(SOUND_MIXER_CAPS)

    #define MIXER_WRITE(dev)        __SIOWR('M', dev, int)
    #define SOUND_MIXER_WRITE_VOLUME MIXER_WRITE(SOUND_MIXER_VOLUME)
    #define SOUND_MIXER_WRITE_BASS MIXER_WRITE(SOUND_MIXER_BASS)
    #define SOUND_MIXER_WRITE_TREBLE MIXER_WRITE(SOUND_MIXER_TREBLE)
    #define SOUND_MIXER_WRITE_SYNTH MIXER_WRITE(SOUND_MIXER_SYNTH)
    #define SOUND_MIXER_WRITE_PCM MIXER_WRITE(SOUND_MIXER_PCM)
    #define SOUND_MIXER_WRITE_SPEAKER MIXER_WRITE(SOUND_MIXER_SPEAKER)
    #define SOUND_MIXER_WRITE_LINE MIXER_WRITE(SOUND_MIXER_LINE)
    #define SOUND_MIXER_WRITE_MIC MIXER_WRITE(SOUND_MIXER_MIC)
    #define SOUND_MIXER_WRITE_CD MIXER_WRITE(SOUND_MIXER_CD)
    #define SOUND_MIXER_WRITE_IMIX MIXER_WRITE(SOUND_MIXER_IMIX)
    #define SOUND_MIXER_WRITE_ALTPCM MIXER_WRITE(SOUND_MIXER_ALTPCM)
    #define SOUND_MIXER_WRITE_RECLEV MIXER_WRITE(SOUND_MIXER_RECLEV)
    #define SOUND_MIXER_WRITE_IGAIN MIXER_WRITE(SOUND_MIXER_IGAIN)
    #define SOUND_MIXER_WRITE_OGAIN MIXER_WRITE(SOUND_MIXER_OGAIN)
    #define SOUND_MIXER_WRITE_LINE1 MIXER_WRITE(SOUND_MIXER_LINE1)
    #define SOUND_MIXER_WRITE_LINE2 MIXER_WRITE(SOUND_MIXER_LINE2)
    #define SOUND_MIXER_WRITE_LINE3 MIXER_WRITE(SOUND_MIXER_LINE3)

/* Obsolete macros */
    #define SOUND_MIXER_WRITE_MUTE MIXER_WRITE(SOUND_MIXER_MUTE)
    #define SOUND_MIXER_WRITE_ENHANCE MIXER_WRITE(SOUND_MIXER_ENHANCE)
    #define SOUND_MIXER_WRITE_LOUD MIXER_WRITE(SOUND_MIXER_LOUD)

    #define SOUND_MIXER_WRITE_RECSRC MIXER_WRITE(SOUND_MIXER_RECSRC)

typedef struct mixer_info   /* OBSOLETE */
{
    char id[16];
    char name[32];
    int modify_counter;
    int card_number;
    int port_number;
    char handle[32];
} mixer_info;

/* SOUND_MIXER_INFO is obsolete - use SNDCTL_MIXERINFO instead */
    #define SOUND_MIXER_INFO __SIOR('M', 101, mixer_info)

/*
 * Two ioctls for special souncard function (OSS/Free only)
 */
    #define SOUND_MIXER_AGC _SIOWR('M', 103, int)
    #define SOUND_MIXER_3DSE _SIOWR('M', 104, int)
/*
 * The SOUND_MIXER_PRIVATE# commands can be redefined by low level drivers.
 * These features can be used when accessing device specific features.
 */
    #define SOUND_MIXER_PRIVATE1 __SIOWR('M', 111, int)
    #define SOUND_MIXER_PRIVATE2 __SIOWR('M', 112, int)
    #define SOUND_MIXER_PRIVATE3 __SIOWR('M', 113, int)
    #define SOUND_MIXER_PRIVATE4 __SIOWR('M', 114, int)
    #define SOUND_MIXER_PRIVATE5 __SIOWR('M', 115, int)

/* The following two controls were never implemented and they should not be used. */
    #define SOUND_MIXER_READ_MAINVOL __SIOR('M', 116, int)
    #define SOUND_MIXER_WRITE_MAINVOL __SIOWR('M', 116, int)

/*
 * SOUND_MIXER_GETLEVELS and SOUND_MIXER_SETLEVELS calls can be used
 * for querying current mixer settings from the driver and for loading
 * default volume settings _prior_ activating the mixer (loading
 * doesn't affect current state of the mixer hardware). These calls
 * are for internal use by the driver software only.
 */

typedef struct mixer_vol_table
{
    int num;        /* Index to volume table */
    char name[32];
    int levels[32];
} mixer_vol_table;

    #define SOUND_MIXER_GETLEVELS __SIOWR('M', 116, mixer_vol_table)
    #define SOUND_MIXER_SETLEVELS __SIOWR('M', 117, mixer_vol_table)

    #define OSS_GETVERSION __SIOR('M', 118, int)

/*
 * Calls to set/get the recording gain for the currently active
 * recording source. These calls automatically map to the right control.
 * Note that these calls are not supported by all drivers. In this case
 * the call will return -1 with errno set to EINVAL
 *
 * The _MONGAIN work in similar way but set/get the monitoring gain for
 * the currently selected recording source.
 */
    #define SOUND_MIXER_READ_RECGAIN __SIOR('M', 119, int)
    #define SOUND_MIXER_WRITE_RECGAIN __SIOWR('M', 119, int)
    #define SOUND_MIXER_READ_MONGAIN __SIOR('M', 120, int)
    #define SOUND_MIXER_WRITE_MONGAIN __SIOWR('M', 120, int)

/* The following call is for driver development time purposes. It's not
 * present in any released drivers.
 */
typedef unsigned char oss_reserved_t[512];
    #define SOUND_MIXER_RESERVED __SIOWR('M', 121, oss_reserved_t)
#endif /* ifndef NO_LEGACY_MIXER */

/*
 *************************************************************************
 * The "new" mixer API of OSS 4.0 and later.
 *
 * This improved mixer API makes it possible to access every possible feature
 * of every possible device. However you should read the mixer programming
 * section of the OSS API Developer's Manual. There is no chance that you
 * could use this interface correctly just by examining this header.
 */

typedef struct oss_sysinfo
{
    char product[32];   /* For example OSS/Free, OSS/Linux or OSS/Solaris */
    char version[32];   /* For example 4.0a */
    int versionnum;     /* See OSS_GETVERSION */
    char options[128];      /* Reserved */

    int numaudios;      /* # of audio/dsp devices */
    int openedaudio[8];     /* Bit mask telling which audio devices are busy */

    int numsynths;      /* # of availavle synth devices */
    int nummidis;       /* # of available MIDI ports */
    int numtimers;      /* # of available timer devices */
    int nummixers;      /* # of mixer devices */

    int openedmidi[8];      /* Bit mask telling which midi devices are busy */
    int numcards;       /* Number of sound cards in the system */
    int numaudioengines;    /* Number of audio engines in the system */
    int filler[240];    /* For future expansion (set to -1) */
} oss_sysinfo;

typedef struct oss_mixext
{
    int dev;        /* Mixer device number */
    int ctrl;       /* Controller number */
    int type;       /* Entry type */
#define MIXT_DEVROOT 0      /* Device root entry */
#define MIXT_GROUP 1        /* Controller group */
#define MIXT_ONOFF 2        /* OFF (0) or ON (1) */
#define MIXT_ENUM 3         /* Enumerated (0 to maxvalue) */
#define MIXT_MONOSLIDER 4       /* Mono slider (0 to 255) */
#define MIXT_STEREOSLIDER 5     /* Stereo slider (dual 0 to 255) */
#define MIXT_MESSAGE 6      /* (Readable) textual message */
#define MIXT_MONOVU 7       /* VU meter value (mono) */
#define MIXT_STEREOVU 8         /* VU meter value (stereo) */
#define MIXT_MONOPEAK 9         /* VU meter peak value (mono) */
#define MIXT_STEREOPEAK 10      /* VU meter peak value (stereo) */
#define MIXT_RADIOGROUP 11      /* Radio button group */
#define MIXT_MARKER 12      /* Separator between normal and extension entries */
#define MIXT_VALUE 13       /* Decimal value entry */
#define MIXT_HEXVALUE 14        /* Hexadecimal value entry */
#define MIXT_MONODB 15      /* OBSOLETE */
#define MIXT_STEREODB 16        /* OBSOLETE */
#define MIXT_SLIDER 17      /* Slider (mono) with full (31 bit) postitive integer range */
#define MIXT_3D 18

    /*
     * Sliders with range expanded to 15 bits per channel (0-32767)
     */
#define MIXT_MONOSLIDER16 19
#define MIXT_STEREOSLIDER16 20

    /* Possible value range (minvalue to maxvalue) */
    /* Note that maxvalue may also be smaller than minvalue */
    int maxvalue;
    int minvalue;

    int flags;
#define MIXF_READABLE 0x00000001        /* Has readable value */
#define MIXF_WRITEABLE 0x00000002       /* Has writeable value */
#define MIXF_POLL 0x00000004        /* May change itself */
#define MIXF_HZ 0x00000008          /* Herz scale */
#define MIXF_STRING 0x00000010      /* Use dynamic extensions for value */
#define MIXF_DYNAMIC 0x00000010     /* Supports dynamic extensions */
#define MIXF_OKFAIL 0x00000020      /* Interpret value as 1=OK, 0=FAIL */
#define MIXF_FLAT 0x00000040        /* Flat vertical space requirements */
#define MIXF_LEGACY 0x00000080      /* Legacy mixer control group */
#define MIXF_CENTIBEL 0x00000100        /* Centibel (0.1 dB) step size */
#define MIXF_DECIBEL 0x00000200     /* Step size of 1 dB */
#define MIXF_MAINVOL 0x00000400     /* Main volume control */
#define MIXF_PCMVOL 0x00000800      /* PCM output volume control */
#define MIXF_RECVOL 0x00001000      /* PCM recording volume control */
    char id[16];        /* Mnemonic ID (mainly for internal use) */
    int parent;         /* Entry# of parent (group) node (-1 if root) */

    int dummy;          /* Internal use */

    int timestamp;

    char data[64];      /* Misc data (entry type dependent) */
    unsigned char enum_present[32]; /* Mask of allowed enum values */
    int control_no;     /* SOUND_MIXER_VOLUME..SOUND_MIXER_MIDI */
    /* (-1 means not indicated) */

    /*
     * The desc field is reserved for internal purposes of OSS. It should not be
     * used by applications.
     */
    unsigned int desc;
#define MIXEXT_SCOPE_MASK 0x0000003f
#define MIXEXT_SCOPE_OTHER 0x00000000
#define MIXEXT_SCOPE_INPUT 0x00000001
#define MIXEXT_SCOPE_OUTPUT 0x00000002
#define MIXEXT_SCOPE_MONITOR 0x00000003
#define MIXEXT_SCOPE_RECSWITCH 0x00000004

    char extname[32];
    int update_counter;
    int filler[7];
} oss_mixext;

typedef struct oss_mixext_root
{
    char id[16];
    char name[48];
} oss_mixext_root;

typedef struct oss_mixer_value
{
    int dev;
    int ctrl;
    int value;
    int flags;          /* Reserved for future use. Initialize to 0 */
    int timestamp;      /* Must be set to oss_mixext.timestamp */
    int filler[8];      /* Reserved for future use. Initialize to 0 */
} oss_mixer_value;

#define OSS_ENUM_MAXVALUE 255
typedef struct oss_mixer_enuminfo
{
    int dev;
    int ctrl;
    int nvalues;
    int version;        /* Read the manual */
    short strindex[OSS_ENUM_MAXVALUE];
    char strings[3000];
} oss_mixer_enuminfo;

#define OPEN_READ PCM_ENABLE_INPUT
#define OPEN_WRITE PCM_ENABLE_OUTPUT
#define OPEN_READWRITE (OPEN_READ | OPEN_WRITE)

typedef struct oss_audioinfo
{
    int dev;        /* Audio device number */
    char name[64];
    int busy;       /* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
    int pid;
    int caps;       /* PCM_CAP_INPUT, PCM_CAP_OUTPUT */
    int iformats, oformats;
    int magic;          /* Reserved for internal use */
    char cmd[64];       /* Command using the device (if known) */
    int card_number;
    int port_number;
    int mixer_dev;
    int legacy_device;      /* Obsolete field. Replaced by devnode */
    int enabled;        /* 1=enabled, 0=device not ready at this moment */
    int flags;          /* For internal use only - no practical meaning */
    int min_rate, max_rate; /* Sample rate limits */
    int min_channels, max_channels; /* Number of channels supported */
    int binding;        /* DSP_BIND_FRONT, etc. 0 means undefined */
    int rate_source;
    char handle[32];
#define OSS_MAX_SAMPLE_RATES 20     /* Cannot be changed  */
    unsigned int nrates, rates[OSS_MAX_SAMPLE_RATES]; /* Please read the manual before using these */
    oss_longname_t song_name; /* Song name (if given) */
    oss_label_t label;      /* Device label (if given) */
    int latency;        /* In usecs, -1=unknown */
    oss_devnode_t devnode;  /* Device special file name (absolute path) */
    int next_play_engine;   /* Read the documentation for more info */
    int next_rec_engine;    /* Read the documentation for more info */
    int filler[184];
} oss_audioinfo;

typedef struct oss_mixerinfo
{
    int dev;
    char id[16];
    char name[32];
    int modify_counter;
    int card_number;
    int port_number;
    char handle[32];
    int magic;          /* Reserved */
    int enabled;        /* Reserved */
    int caps;
#define MIXER_CAP_VIRTUAL 0x00000001
#define MIXER_CAP_LAYOUT_B 0x00000002   /* For internal use only */
#define MIXER_CAP_NARROW 0x00000004     /* Conserve horiz space */
    int flags;          /* Reserved */
    int nrext;
    /*
     * The priority field can be used to select the default (motherboard)
     * mixer device. The mixer with the highest priority is the
     * most preferred one. -2 or less means that this device cannot be used
     * as the default mixer.
     */
    int priority;
    oss_devnode_t devnode;  /* Device special file name (absolute path) */
    int legacy_device;
    int filler[245];    /* Reserved */
} oss_mixerinfo;

typedef struct oss_midi_info
{
    int dev;        /* Midi device number */
    char name[64];
    int busy;       /* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
    int pid;
    char cmd[64];       /* Command using the device (if known) */
    int caps;
#define MIDI_CAP_MPU401 0x00000001      /**** OBSOLETE ****/
#define MIDI_CAP_INPUT 0x00000002
#define MIDI_CAP_OUTPUT 0x00000004
#define MIDI_CAP_INOUT (MIDI_CAP_INPUT | MIDI_CAP_OUTPUT)
#define MIDI_CAP_VIRTUAL 0x00000008     /* Pseudo device */
#define MIDI_CAP_MTCINPUT 0x00000010    /* Supports SNDCTL_MIDI_MTCINPUT */
#define MIDI_CAP_CLIENT 0x00000020      /* Virtual client side device */
#define MIDI_CAP_SERVER 0x00000040      /* Virtual server side device */
#define MIDI_CAP_INTERNAL 0x00000080    /* Internal (synth) device */
#define MIDI_CAP_EXTERNAL 0x00000100    /* external (MIDI port) device */
#define MIDI_CAP_PTOP 0x00000200        /* Point to point link to one device */
#define MIDI_CAP_MTC 0x00000400         /* MTC/SMPTE (control) device */
    int magic;          /* Reserved for internal use */
    int card_number;
    int port_number;
    int enabled;        /* 1=enabled, 0=device not ready at this moment */
    int flags;          /* For internal use only - no practical meaning */
    char handle[32];
    oss_longname_t song_name; /* Song name (if known) */
    oss_label_t label;      /* Device label (if given) */
    int latency;        /* In usecs, -1=unknown */
    oss_devnode_t devnode;  /* Device special file name (absolute path) */
    int legacy_device;      /* Legacy device mapping */
    int filler[235];
} oss_midi_info;

typedef struct oss_card_info
{
    int card;
    char shortname[16];
    char longname[128];
    int flags;
    int filler[256];
} oss_card_info;

#define SNDCTL_SYSINFO __SIOR('X', 1, oss_sysinfo)
#define OSS_SYSINFO SNDCTL_SYSINFO      /* Old name */

#define SNDCTL_MIX_NRMIX __SIOR('X', 2, int)
#define SNDCTL_MIX_NREXT __SIOWR('X', 3, int)
#define SNDCTL_MIX_EXTINFO __SIOWR('X', 4, oss_mixext)
#define SNDCTL_MIX_READ __SIOWR('X', 5, oss_mixer_value)
#define SNDCTL_MIX_WRITE __SIOWR('X', 6, oss_mixer_value)

#define SNDCTL_AUDIOINFO __SIOWR('X', 7, oss_audioinfo)
#define SNDCTL_MIX_ENUMINFO __SIOWR('X', 8, oss_mixer_enuminfo)
#define SNDCTL_MIDIINFO __SIOWR('X', 9, oss_midi_info)
#define SNDCTL_MIXERINFO __SIOWR('X', 10, oss_mixerinfo)
#define SNDCTL_CARDINFO __SIOWR('X', 11, oss_card_info)
#define SNDCTL_ENGINEINFO __SIOWR('X', 12, oss_audioinfo)
#define SNDCTL_AUDIOINFO_EX __SIOWR('X', 13, oss_audioinfo)

/* ioctl codes 'X', 200-255 are reserved for internal use */

/*
 * Few more "globally" available ioctl calls.
 */
#define SNDCTL_SETSONG __SIOW('Y', 2, oss_longname_t)
#define SNDCTL_GETSONG __SIOR('Y', 2, oss_longname_t)
#define SNDCTL_SETNAME __SIOW('Y', 3, oss_longname_t)
#define SNDCTL_SETLABEL __SIOW('Y', 4, oss_label_t)
#define SNDCTL_GETLABEL __SIOR('Y', 4, oss_label_t)
/*
 * The "new" mixer API definitions end here.
 ***************************************
 */

/*
 *********************************************************
 * Few routines that are included in -lOSSlib
 *
 * At this moment this interface is not used. OSSlib contains just
 * stubs that call the related system calls directly.
 */
#ifdef OSSLIB
extern int osslib_open(const char* path, int flags, int dummy);
extern void osslib_close(int fd);
extern int osslib_write(int fd, const void* buf, int count);
extern int osslib_read(int fd, void* buf, int count);
extern int osslib_ioctl(int fd, unsigned int request, void* arg);
#else
    #define osslib_open open
    #define osslib_close close
    #define osslib_write write
    #define osslib_read read
    #define osslib_ioctl ioctl
#endif

#if 1
    #define SNDCTL_DSP_NONBLOCK __SIO('P', 14)  /* Obsolete. Not supported any more */
#endif

#if 1
/*
 * Some obsolete macros that are not part of Open Sound System API.
 */
    #define SOUND_PCM_READ_RATE SOUND_PCM_READ_RATE_is_obsolete
    #define SOUND_PCM_READ_BITS SOUND_PCM_READ_BITS_is_obsolete
    #define SOUND_PCM_READ_CHANNELS SOUND_PCM_READ_CHANNELS_is_obsolete
    #define SOUND_PCM_WRITE_RATE SOUND_PCM_WRITE_RATE_is_obsolet_use_SNDCTL_DSP_SPEED_instead
    #define SOUND_PCM_WRITE_CHANNELS SOUND_PCM_WRITE_CHANNELS_is_obsolete_use_SNDCTL_DSP_CHANNELS_instead
    #define SOUND_PCM_WRITE_BITS SOUND_PCM_WRITE_BITS_is_obsolete_use_SNDCTL_DSP_SETFMT_instead
    #define SOUND_PCM_POST SOUND_PCM_POST_is_obsolete_use_SNDCTL_DSP_POST_instead
    #define SOUND_PCM_RESET SOUND_PCM_RESET_is_obsolete_use_SNDCTL_DSP_HALT_instead
    #define SOUND_PCM_SYNC SOUND_PCM_SYNC_is_obsolete_use_SNDCTL_DSP_SYNC_instead
    #define SOUND_PCM_SUBDIVIDE SOUND_PCM_SUBDIVIDE_is_obsolete_use_SNDCTL_DSP_SUBDIVIDE_instead
    #define SOUND_PCM_SETFRAGMENT SOUND_PCM_SETFRAGMENT_is_obsolete_use_SNDCTL_DSP_SETFRAGMENT_instead
    #define SOUND_PCM_GETFMTS SOUND_PCM_GETFMTS_is_obsolete_use_SNDCTL_DSP_GETFMTS_instead
    #define SOUND_PCM_SETFMT SOUND_PCM_SETFMT_is_obsolete_use_SNDCTL_DSP_SETFMT_instead
    #define SOUND_PCM_GETOSPACE SOUND_PCM_GETOSPACE_is_obsolete_use_SNDCTL_DSP_GETOSPACE_instead
    #define SOUND_PCM_GETISPACE SOUND_PCM_GETISPACE_is_obsolete_use_SNDCTL_DSP_GETISPACE_instead
    #define SOUND_PCM_NONBLOCK SOUND_PCM_NONBLOCK_is_obsolete_use_SNDCTL_DSP_NONBLOCK_instead
    #define SOUND_PCM_GETCAPS SOUND_PCM_GETCAPS_is_obsolete_use_SNDCTL_DSP_GETCAPS_instead
    #define SOUND_PCM_GETTRIGGER SOUND_PCM_GETTRIGGER_is_obsolete_use_SNDCTL_DSP_GETTRIGGER_instead
    #define SOUND_PCM_SETTRIGGER SOUND_PCM_SETTRIGGER_is_obsolete_use_SNDCTL_DSP_SETTRIGGER_instead
    #define SOUND_PCM_SETSYNCRO SOUND_PCM_SETSYNCRO_is_obsolete_use_SNDCTL_DSP_SETSYNCRO_instead
    #define SOUND_PCM_GETIPTR SOUND_PCM_GETIPTR_is_obsolete_use_SNDCTL_DSP_GETIPTR_instead
    #define SOUND_PCM_GETOPTR SOUND_PCM_GETOPTR_is_obsolete_use_SNDCTL_DSP_GETOPTR_instead
    #define SOUND_PCM_MAPINBUF SOUND_PCM_MAPINBUF_is_obsolete_use_SNDCTL_DSP_MAPINBUF_instead
    #define SOUND_PCM_MAPOUTBUF SOUND_PCM_MAPOUTBUF_is_obsolete_use_SNDCTL_DSP_MAPOUTBUF_instead
#endif

#endif